The 66,000-pound tank started its journey through the streets of Los Angeles beginning at midnight, causing several road closures as crews navigated the orange space shuttle.

Here is a map of the route:

A map of the journey NASA space shuttle fuel-tank ET-94 will make on Saturday, May 21, 2016.

While the shuttle, which is three stories high, was on the move at about 3 to 5 mph through the first portion of the 16.5-mile trek, residents gathered behind to watch history make its way through their neighborhoods.